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MPR121QR2 The NXP Semiconductors MPR121QR2 is a capacitive touch sensor controller with up to 12 electrodes and an I2C interface. It operates from 1.71V to 3.6V and is suitable for surface mount applications.
Mfr Part #:

MPR121QR2

Available from 2 distributors
Mfr Name: NXP Semiconductors
NXP Semiconductors
The NXP Semiconductors MPR121QR2 is a capacitive touch sensor controller with up to 12 electrodes and an I2C interface. It operates from 1.71V to 3.6V and is suitable for surface mount applications.
✓ Total Stock: 5,335 pcs
$ Price Range: $2.23

MPR121QR2 Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Xingangxin ✓
Non-Authorised Inventory information
2,810 pcs
On Request
2810 pcs On Request 1 On Request On Request On Request On Request On Request
Components Technology Group, Inc. ✓
Non-Authorised Inventory information
2,525 pcs
On Request
2525 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

MPR121QR2 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Interface
LED Driver Channels
Lead Spacing
Mounting Type
Number of Inputs
Operating Temperature
Proximity Detection
Supplier Device Package
Supplier Package
Tape & Reel
Type
Voltage
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MPR121QR2 Description

Short technical summary and product information.

The MPR121QR2 from NXP Semiconductors is a second-generation proximity capacitive touch sensor controller. It offers enhanced internal intelligence and a capacitance detection engine with features like a hardware configurable I2C address and an expanded filtering system with debounce.

 

This controller supports up to 12 electrodes, with 8 multifunctional inputs for LED driving and GPIO. It operates within a voltage range of 1.71V to 3.6V and features an I2C interface with an IRQ interrupt output. The device is designed for general-purpose capacitance detection, switch replacements, touch pads, touch screens, and capacitance near proximity detection.

 

The MPR121QR2 is housed in a 20-QFN (3x3) package, making it suitable for surface mount applications. It operates across a wide temperature range of -40°C to +85°C, ensuring reliability in various environmental conditions. Typical applications include PC peripherals, MP3 players, remote controls, mobile phones, and lighting controls.

MPR121QR2 Quick Information

Product Type: Capacitive Touch Sensor Controller
Canonical Name: MPR121QR2 Capacitive Touch Sensor Controller
Subcategory: Capacitive Touch

MPR121QR2 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

MPR121QR2 Estimated Pricing

Qty Low High
1+ $2.23 $2.23

Estimated market price range - modelled values for guidance only, not live distributor offers.

MPR121QR2 Features

  • Up to 12 capacitive sensing inputs.
  • Hardware configurable I2C address.
  • Integrated independent autocalibration.
  • Operates from 1.71V to 3.6V.
  • 20-QFN package for surface mounting.

MPR121QR2 Applications

  • Ideal for touch pads and screens.
  • Suitable for switch replacements.
  • Enables proximity detection.
  • Used in PC peripherals.
  • Applicable for mobile devices.

MPR121QR2 FAQs

3 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the MPR121QR2?

The operating voltage range is 1.71V to 3.6V.

What package type is the MPR121QR2 supplied in?

The MPR121QR2 is supplied in a 20-QFN (3x3) package.

What is the operating temperature range for the MPR121QR2?

The operating temperature range is -40°C to +85°C.

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